Rainline: Mainline the intelligence ecosystem
Like the first humans landing on Mars, you're exploring new territory. Rainline brings powerful AI tooling directly to your desktop—zero friction, full control, infinite possibility.
Privacy-First Architecture
macOS Keychain storage. Local daemon. Your keys never leave your machine.
200+ Tools Through DevKit
Optional upgrade to Rainfall DevKit. Access advanced AI capabilities seamlessly.
Built by Pragma Digital
Seasoned product team with a proven track record and active development.
Built for power users
Every feature designed for daily, intensive use.
Multi-Provider Flexibility
Bring Your Own Keys for OpenAI, Anthropic, Groq, DeepSeek, Kimi, LM Studio. Switch instantly.
MCP Integration
Connect to any MCP server. Mix Rainfall, MCP, local, and external tools in one palette.
Real-Time Tool Execution
Inline tool calls with live status indicators. Full transparency into what's running.
Chrome System
Unicode emoji triggers create styled components for rich AI responses with spec cards and status bars.
Global Hotkey
Toggle Rainline from anywhere with Cmd+Shift+R. Menu bar integration means zero context switching.
Advanced Markdown
KaTeX math, tables with wrappers, and code blocks with language detection.
Swarm Agent System
Advanced agent orchestration with Von Neumann recursion for infinite intelligence scaling.
How we compare
See why Rainline stands out against other desktop AI chat apps.
Loved by power users
What early adopters are saying about Rainline.
Rainline is the first AI chat app that actually feels like a native Mac app. The global hotkey alone saves me an hour every week.
Alex Chen
Engineering Lead, Stripe
I was skeptical about another AI client, but the MCP integration and local execution model won me over. My keys never leave my machine.
Sarah Kim
Security Researcher, Trail of Bits
Finally, a desktop AI tool that lets me use Anthropic, OpenAI, and Groq without switching apps. Rainline is now my default workspace.
Marcus Webb
Product Designer, Figma
Simple pricing
Start free. Upgrade when you're ready to unlock the full ecosystem.
Basic
Everything you need to start chatting with AI on your Mac.
- Multi-provider support
- MCP integration
- Local tool execution
- macOS Keychain storage
- Global hotkey
Pro
Power-user features for professionals who live in AI tools.
- Everything in Basic
- Unlimited conversation history
- Custom model profiles
- Sync across devices
- Priority support
DevKit
Unlock the full Rainfall DevKit ecosystem with 200+ tools.
- Everything in Pro
- 200+ advanced Rainfall tools
- Premium MCP servers
- Cloud orchestration
- API access
The future of AI is coming soon.
Download Rainline Basic for free. No account needed. Your keys, your data, your machine.
System Requirements
- macOS 12.0 (Monterey) or later
- Apple Silicon (M1/M2/M3) or Intel
- 4GB RAM minimum (8GB recommended)
- 100MB disk space